Airline companies in Japan

There are 2 major airline companies in Japan. These are full service.
One is JAPAN AIRLINES = JAL＝ a member of oneworld alliance
Another is All Nippon Airways = ANA = a star alliance member

And these 3 companies are LCC
・Peach Aviation
・Jetstar Japan
・vanilla air

These 2 companies are full-service but fare is lower than Japan Airlines and All Nippon Airways.
・STARFLYER
・SKYMARK AIRLINES

Mainly I use Japan airlines because I’m a card holder of oneworld and I worked JAL before.
But if you want save the cost, I recommend you to use LCC,
because the fare is totally different!!